sl@0: // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #include "graphics/WSGRAPHICMSGBUF.H"
sl@0: #include "DrawSection.h"
sl@0: 
sl@0: const TInt KBufferSize = 1000;
sl@0: 
sl@0: /**
sl@0: This uid is used to identify a drawsection in the messagebuffer that is used for IPC.
sl@0: */
sl@0: const TUid KDrawSection = {0x101F63B2};
sl@0: 
sl@0: /**
sl@0: Creates and returns new drawsection.
sl@0: 
sl@0: @return A new instance of CDrawSection.
sl@0: */
sl@0: CDrawSection* CDrawSection::NewL()
sl@0: 	{
sl@0: 	return new (ELeave) CDrawSection;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Creates and returns new drawsection.
sl@0: 
sl@0: @param aDrawRect The drawrect of the drawsection.
sl@0: @param aBoundingRect The boundingrect of the drawcommands of this section.
sl@0: @param aHasBitmapCommand ETrue if the commandbuffer of this drawsection includes a bitmap command of any sort.
sl@0: @return A new instance of CDrawSection.
sl@0: */	
sl@0: CDrawSection* CDrawSection::NewL(const TRect& aDrawRect, const TRect& aBoundingRect, TBool aHasBitmapCommand)
sl@0: 	{
sl@0: 	return new (ELeave) CDrawSection(aDrawRect, aBoundingRect, aHasBitmapCommand);
sl@0: 	}
sl@0: 
sl@0: CDrawSection::CDrawSection()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: CDrawSection::CDrawSection(const TRect& aDrawRect, const TRect& aBoundingRect, TBool aHasBitmapCommand) : iDrawRect(aDrawRect), 
sl@0: 	iBoundingRect(aBoundingRect), iHasBitmapCommand(aHasBitmapCommand), iHasBeenExternalized(EFalse)
sl@0: 	{
sl@0: 	}
sl@0: 	
sl@0: CDrawSection::~CDrawSection()
sl@0: 	{
sl@0: 	delete iSectionSegBuf;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Sets this drawsection's segmented commandbuffer and takes the ownership of the allocated memory.
sl@0: 
sl@0: @param aSegbuf This section's segmented commandbuffer.
sl@0: */
sl@0: void CDrawSection::SetBuffer(CBufBase* aSegBuf)
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(aSegBuf, User::Invariant());
sl@0: 	iSectionSegBuf = aSegBuf;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Returns this drawsection's segmented commandbuffer.
sl@0: 
sl@0: @return this drawsection's segmented commandbuffer.
sl@0: */
sl@0: CBufBase* CDrawSection::Buffer() const
sl@0: 	{
sl@0: 	return iSectionSegBuf;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Sets if this drawsection has been externalized anytime. This is used for partial IPC updates.
sl@0: 
sl@0: @param aHasBeenExternalized ETrue if this drawsection has been externalized, otherwise EFalse.
sl@0: */
sl@0: void CDrawSection::SetHasBeenExternalized(TBool aHasBeenExternalized)
sl@0: 	{
sl@0: 	iHasBeenExternalized = aHasBeenExternalized;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Returns ETrue if this drawsection has been externalized, otherwise EFalse.
sl@0: 
sl@0: @return ETrue if this drawsection has been externalized, otherwise EFalse.
sl@0: */	
sl@0: TBool CDrawSection::HasBeenExternalized() const
sl@0: 	{
sl@0: 	return iHasBeenExternalized;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Compares this drawsection to aDrawSection and check if they are identical.
sl@0: 
sl@0: @param aDrawSection The drawsection to compare with.
sl@0: @return ETrue if the drawsections are identical, otherwise EFalse.
sl@0: */
sl@0: TBool CDrawSection::IsIdentical(const CDrawSection& aDrawSection) const
sl@0: 	{
sl@0: 	const TRect drawRect = aDrawSection.DrawRect();
sl@0: 	CBufBase* segBuf = aDrawSection.Buffer();
sl@0: 	if(!iHasBitmapCommand && iDrawRect.iTl == drawRect.iTl && iDrawRect.iBr == drawRect.iBr && segBuf->Size() == iSectionSegBuf->Size())
sl@0: 		{
sl@0: 		const TInt count = iSectionSegBuf->Size();
sl@0: 		for(TInt i = 0; i < count; i++)
sl@0: 			{
sl@0: 			const TPtr8 comparePtr = segBuf->Ptr(i);
sl@0: 			if(iSectionSegBuf->Ptr(i).Compare(segBuf->Ptr(i))) //Not identical
sl@0: 				return EFalse;
sl@0: 			
sl@0: 			i += comparePtr.Size();
sl@0: 			}
sl@0: 		return ETrue;
sl@0: 		}
sl@0: 	return EFalse;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Returns the drawrect of this drawsection.
sl@0: 
sl@0: @return The drawrect of this drawsection.
sl@0: */
sl@0: TRect CDrawSection::DrawRect() const
sl@0: 	{
sl@0: 	return iDrawRect;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Externalizes this drawsection to a message buffer to send over IPC.
sl@0: 
sl@0: @param aMsgBuf The message buffer to add this drawsection to.
sl@0: */
sl@0: void CDrawSection::ExternalizeL(RWsGraphicMsgBuf& aMsgBuf)
sl@0: 	{
sl@0: 	const TInt length = sizeof(TRect)*2 + iSectionSegBuf->Size();
sl@0: 	TPtr8 msgPtr(NULL, 0);
sl@0: 	User::LeaveIfError(aMsgBuf.Append(KDrawSection, length, msgPtr));
sl@0: 	
sl@0: 	// Add drawRect to aMsgBuf
sl@0: 	const TPckgBuf<TRect> drawRect(iDrawRect);
sl@0: 	msgPtr.Append(drawRect);
sl@0: 	
sl@0: 	// Add boundingRect to aMsgBuf
sl@0: 	const TPckgBuf<TRect> boundingRect(iBoundingRect);
sl@0: 	msgPtr.Append(boundingRect);
sl@0: 	
sl@0: 	// Add drawcommands to aMsgBuf
sl@0: 	TInt count = 0;
sl@0: 	const TInt sectionSegBufSize = iSectionSegBuf->Size();
sl@0: 	while(count < sectionSegBufSize)
sl@0: 		{		
sl@0: 		TPtr8 ptr = iSectionSegBuf->Ptr(count);
sl@0: 		msgPtr.Append(ptr);
sl@0: 		count += ptr.Size();
sl@0: 		}	
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Loads a drawsection from externalized data.
sl@0: 
sl@0: @param aData The parser for the externalized data.
sl@0: @param aIndex The index of the drawsection in CCommandBuffer::iDrawSections to load from the externalized data.
sl@0: */
sl@0: TInt CDrawSection::LoadL(const TWsGraphicMsgBufParser& aData, TInt aIndex)
sl@0: 	{
sl@0: 	if(aData.Uid(aIndex).iUid != KDrawSection.iUid)
sl@0: 		{
sl@0: 		return KErrArgument;
sl@0: 		}
sl@0: 		
sl@0: 	const TPtrC8 pckg = aData.Data(aIndex);	
sl@0: 	const TPtrC8 drawRectPtr = pckg.Left(sizeof(TRect));
sl@0: 	const TPtrC8 boundingRectPtr = pckg.Mid(sizeof(TRect), sizeof(TRect));
sl@0: 	const TPtrC8 segBufPtr = pckg.Mid(sizeof(TRect)*2);
sl@0: 	
sl@0: 	Mem::Copy(&iDrawRect, drawRectPtr.Ptr(), sizeof(TRect));
sl@0: 	Mem::Copy(&iBoundingRect, boundingRectPtr.Ptr(), sizeof(TRect));
sl@0: 	
sl@0: 	if(iSectionSegBuf)
sl@0: 		delete iSectionSegBuf;
sl@0: 	
sl@0: 	iSectionSegBuf = CBufSeg::NewL(KBufferSize);
sl@0: 	iSectionSegBuf->InsertL(0, segBufPtr);
sl@0: 	return KErrNone;	
sl@0: 	}
sl@0: